| 摘要 |
PURPOSE:To equalize the lifetimes of unit electric devices by arranging throttle units between a common oil guide pipes and the unit electric devices. CONSTITUTION:When throttle units 7 such as orifices are mounted on piping units between a common oil guide pipe and split tanks 1 and are determined in size so that oil amounts flow uniformly to the tanks 1, cooling oil amount flowing to coils can be equalized, thereby allowing the temperature rise of the coils to become uniform and preventing the unbalance of the deterioration of insulators due to the temperature rise. |
